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  1. <?php
  2.  
  3. abstract class Render
  4. {
  5.  
  6.     abstract public function main();
  7.  
  8.     public function __construct()
  9.     {
  10.  
  11.     }
  12.  
  13.     final public function render()
  14.     {
  15.         if (!$this->canRender()) return null;
  16.  
  17.         return $this->main();
  18.     }
  19.  
  20.     final public function canRender()
  21.     {
  22.         // Logic here
  23.         return true;
  24.     }
  25. }
  26.  
  27. class AdminPanel extends Render
  28. {
  29.     public function main()
  30.     {
  31.         return "Admin Panel";
  32.     }
  33. }
  34.  
  35. $panel = new AdminPanel();
  36.  
  37. echo $panel->render();
Success #stdin #stdout 0.01s 20568KB
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Admin Panel
https://ideone.com/D5hA3H
language:
PHP (php 7.3.5)
created:
11 years ago
visibility:
public

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